A new design for automotive alternators semantic scholar. I dont have the diagram in front of me but it used a cd4017 ring counter hooked. Alternator is an electromechanical device which converts mechanical energy into electrical energy. In order for vehicle manufacturers to produce more efficient engines with more power and fewer emissions they looked at ways of reducing other loads on the engine and one way is to control the alternator. The basic method of voltage regulation is similar to that found in all alternator systems. Auxiliary battery charging in vehicles with smart alternators. The bmw intelligent battery sensor ibs is a mechanicalelectronic device which is connected directly to the negative battery terminal. To design an automotive electrical power system with higher efficiency is a very practical requirement. Furthermore, this sensor can help reducing the risk of a breakdown due to a weak battery. The ibs contains a microprocessor that is used to monitormeasure various battery conditions such as. Technical information external alternator control units as vehicle electric systems become more and more complex, simple alternator regulation is usually no longer sufficient. Diagnosing computercontrolled charging systems this is the rectangular alternator harness connector that gm used from 1986 through the mid1990s. An intelligent control strategy of a vehicular alternator was observed in the studies by kong 7. Alternator interrupting circuit for improving fuel.
The mechanical design is characterized by a costeffective, compact design, with maximum flexibility for different cable variants and intergration solutions. Low temperature version available order code ig3200xxbla inteligen 200 is further offering. This closeup photo clearly shows the lettering on the rectangular alternator connector gm used on all of its. Intelligent vehicular charging systems are used when dynamic control of the alternator output and torque is desired for optimal charging of battery, electrical power management system, and alternator engine interaction. Understanding the alternator four wires connect the alternator to the rest of the charging system. Intelligent alternator definition and meaning meineke. Manufacture of voltage regulators, alternator controls, turbine generator control units, master controls, and electrical components for general aviation aircraft and helicopters. A high output alternator can be an excellent alternative for a small ac generator. One of the technologies that has been around for several years, but which is now becoming standard on new vehicles, is the smart or intelligent ecucontrolled alternator. The high pole number is achieved by intelligent magnetic field. Research of intelligent automotive alternator control. Key components the key components of the modern voltage supply system include a battery, a battery sensor, engine control ecu, alternator, data bus, power cables and the vehicle load. This paper describes and analyzes a method to recuperate electrical energy from a portion of the vehicle kinetic energy through an intelligent alternator control mechanism. Realtime vehicle energy management system based on optimized.
Other members of the family are the directcurrent dc motor or generator, the induction motor or generator, and a number of derivatives of all these three. What is smart now is a central control unit ecu, ems which controls them. In this system, we divided the battery states to different partitions by state of charge, and designed an intelligent alternator control system to work in different mode according to the battery partition and the vehicle state. Since it uses the power of the engine to work, it consumes more fuel when generating electricity. Excitation systems and automatic voltage regulators description of main excitation systems alternator with noncontrolled recti er the diode recti er does not introduce any delay the ring of the thyristors can be adjusted very rapidly the exciter still introduces a time constant the diodes do not allow applying a negative eld voltage if needed. An intelligent alternator control strategy for automotive. Nearly every time i look at an alternator it conjures up fond memories of growing up in a familyowned auto electric shop. The strategy reduced fuel consumption by adjusting the working mode of the alternator. High output alternator with multi stage regulator victron energy. This alternator is uniquely designed and engineered to provide the finest performance and durability for your vessel. Intelligent alternator control and regeneration of brake energy discussion in the bmw lounge started by eni, sep 28, 2006. In this paper, a room light control system is proposed which is named as light control system lcs.
Intelligent control of alternator grants an opportunity for the. The intelligent alternator control system, its implementation on a demonstrator vehicle including the control logics, and measurements of recuperated energy and fuel saving. L9409 alternator voltage regulator with load response. Other members of the family are the directcurrent dc motor or generator, the induction motor or generator, and a number. Real time detection of alternator failures using intelligent. The intelligent alternator control system, its implementation on a demonstrator. Prosplitr zero volt drop marine battery isolator intelligent digital alternator distribution system 24v, 2 inputs x 80 amps, 4 output.
Previously, alternators were generating power all of the time, but this new alternator improves engine fuel consumption through regenerative control technology that regenerates power when the vehicle is decelerating, and by lowering consumption by not generating power at other times. Elec0047 power system dynamics, control and stability. Chapter 1 principles of operation of synchronous machines the synchronous electrical generator also called alternator belongs to the family of electric rotating machines. I terminal bus voltage is on this post when the contactor is. Chrysler still uses a similar method of voltage regulation today.
Alternator drive and controls systems flight mechanic. Alternator control strategy the core principle of smart charging, or intelligent alternator control, is that the. Intelligent vehicular charging systems are used when dynamic control of the alternator output and torque is desired for optimal charging of battery, electrical power. Proisocharge a x 4x output 23127 proisocharge delivers digitally controlled alternator output distribution while protecting the health of engine start batteries, isolating and charging up to 3 other independent battery banks off of a single alternator model specific. The smart alternator system allows the vehicle to control the output voltage from the alternator based on vehicle operating conditions to reduce electrical load.
Intelligent regulator needed the standard alternator on the main engine is intended for charging the starter battery. Intelligent alternator control system researchgate. Hence, energy saving and fuel consumption improvement in conventional vehicles are desired. Under these conditions an intelligent multi step regulator will. Maximum benefit is achieved when combined with a hybrid vehicle architecture. For the customer this function has no influence whatsoever on the power output development of bmw vehicles. S is used by the regulator to monitor charging voltage at the battery. A voltage regulator controls alternator output by changing the amount of current flow through the rotor windings.
Technical information external alternator control units. The market concern of improvement of vehicle safety and its convenience to drive a vehicle has resulted in the growth of the demand for vehicular electronic equipment. Sterling power usa prosplitr t84 zero volt drop battery isolator intelligent digital alternator distribution system 24v, 2 inputs x 80 amps, 4 outputs. I might have already had a circuit to work but stopped short of trying it with a car battery.
At the paris auto show, bmw introduced a system it calls intelligent alternator control iac to generate electric power for a cars onboard. In this paper, we proposed an automotive intelligent alternator control system. Realtime vehicle energy management system based on. In this way, the voltage regulator can maintain a preset charging voltage. Announced last year at the paris auto show, the intelligent alternator control iac system generates electric power for a cars onboard network exclusively in overrun and during braking. Generator isg replaces the starter motor and alternator. The communication interface for the higherlevel control unit is the lin protocol. A control strategy and related hardware are described that operate the 12v alternator and accessories more efficiently than voltage regulator strategies that are currently employed by utilizing the. Easy switching between parallel to mains or multiple genset. Cooling the integral fan provides effective through cooling of the alternator. The information from the battery sensor is used to calculate the charge and ageing status of the vehicle battery. In this paper, electrical system of a conventional vehicle is modeled to understand its behavior more thoroughly.
Research of intelligent automotive alternator control system. The core principle of the intelligent alternator control is an expanded charging strategy for the vehicle battery. The power system of ice vehicles is composed of an alternator and a battery. Artificial neural network artificial neural network is a data processing system that aims to give abilities of learning, generalizing, remembering to. Intelligent alternator control system springerlink.
Intelligent peripheral control provides an opportunity for increased fuel efficiency and reduced emissions. Jan 12, 2007 bmw will begin offering its intelligent alternator control and brake energy regeneration on select models of the new 2008 5series. Various design solutions are available depending upon the application. An intelligent alternator control approach for fuel consumption. Control unit or starter button activates coil closes contactor. An intelligent alternator control strategy for automotive applications. Unlike most automotivetype alternators found standard on the majority of pleasure craft and marketed as lower. Installed between the engine and gearbox the isg supplies power to save fuel as the engine has not to work on its own. In the 1980s, chrysler pioneered voltage regulation with an engine control computer on its first efi systems. Here we introduce a new design for automotive alternators that utilizes the conventional lundell machine but incorporates a simple switched mode rectifier along with a special loadmatching control technique. The intelligent battery sensor ibs provides information about the current energy status, allowing users to efficiently plan their energy supply. The load response control function is activated in order to eliminate ic engine speed fluctuation and vibrations caused by the insertion of sudden electrical loads during alternator low speed operations f alternator to run like a motor. The synchronous electrical generator also called alternator belongs to the family of electric rotating machines.
Here we introduce a new design for automotive alternators that utilizes the conventional lundell machine but incorporates a simple switched mode rectifier along with. A recent technological advancement, the intelligent alternator reduces fuel consumption while simultaneously providing more power for acceleration by limiting the use of the alternator any time the engine does not require drive power e. The intelligent alternator control system, its implementation on a demonstrator vehicle including the control logics, and measurements of recuperated energy and fuel saving under different test conditions are presented as part of this paper. Oct 21, 2004 international rectifier introduces lincontrolled alternator voltage regulator for improved dynamic control in intelligent automotive charging systems october 21, 2004 06. Intelligent flap controller ifc is an electronic controller designed specifically to operate dc motor actuators including the vans aircraft series of flap actuators used in rv type homebuilt aircraft. As shown in figure 982, the gcu controls the exciter field magnetism within the brushless alternator to control alternator output voltage. Ifc connects to the standard upoffdown switches commonly used to control flap operation and directly drives a vans flap actuator. Aux battery charging with smart alternators 12 volt planet. The alternator is a threephase, 12pole synchronous selfexcited generator with builtin rectifier and regulator and cooled by an external fan. On todays vehicles, dynamos are being left gradually and alternators take the turn instead for charging systems.
Other advantages to the zero volt drop intelligent alternator distribution system. B is the alternator output wire that supplies current to the battery. The main purpose of this study is to control the failures that occurs on an alternator using intelligent control systems techniques and monitor the alternators condition. An intelligent alternator control mechanism for energy.
Posted by simon barlow in accessories, caravan electrics. Whats more, the alternator charge rate is controlled depending on feedback from the battery sensor and the engine ecu. Bmw claimed that their intelligent alternator control, which switched off. For those of us wanting to charge a second auxiliary or leisure battery whilst driving this presents a problem because traditional split charge systems cannot be used. Rulebased alternator control using predicted velocity for. Intelligent control of alternator grants an opportunity for the mentioned goals. Bmw will begin offering its intelligent alternator control and brake energy regeneration on select models of the new 2008 5series. Ig is the ignition input that turns on the alternatorregulator assembly.
Inteliconfig our new configuration and monitoring pc tool based on new liteedit will offer you multi genset control and monitoring as well as easy setup. Request pdf an intelligent alternator control strategy for automotive applications intelligent peripheral control provi for increased fuel efficiency and reduced. Then, an intelligent alternator control is proposed for the power system of the vehicle which manages the energy flow through the vehicle power system considering the engine fuel and the. Ford, bmw, mazda, peugeot have integrated socalled intelligent alternator control units in their charging systems. International rectifier introduces lincontrolled alternator. This proposed system will able to provide the needed light which provides the satisfaction of users and will provide energy saving and management. Any change in rotor winding current changes the strength of the magnetic field acting on the stator windings. Design of an intelligent and efficient light control system arun radhakrishnan, department of ece, jimma institute of technology, jimma university, ethiopia vuttaradi anand, department of ece, jimma institute of technology, jimma university, ethiopia abstract. The mc615 constantly monitors the operating temperature and voltage of the battery while managing the alterna tor and monitoring its temperature, ensuring its maximum efficiency when utilized on todays heavy duty vehicles. Particularly in the area of emergency vehicles, an unexpected battery failure can have critical consequences. S terminal positive power from control unit or starter button activates coil closes contactor. The alternator does not require valuable floor space, will cost less and will be more reliable. Intelligent alternator control and regeneration of brake energy the objective pursued by.
Bmw to offer intelligent alternator controlregenerative. I terminal bus voltage is on this post when the contactor is closed. Efficient use of energy for enhanced driving dynamics. An example is the specific control of the alternator in such a way as to improve driving dynamics and fuel economy. International rectifier introduces lincontrolled alternator voltage regulator for improved dynamic control in intelligent automotive charging systems october 21. This alternator is uniquely engineered to provide the finest performance and durability for your vessel. The terminals are identified as either plis or plfs. The control strategy can change the output of the intelligent alternator and the. Recently, many researches has been carried out to save the energy in many aspects such. The standard alternator on the main engine is intended for charging the starter battery. Pdf real time detection of alternator failures using.